Evidence map›Paper›PMID 34522079›Full record

ReviewClinical ophthalmology (Auckland, N.Z.)2021

Presbyopia Treatments by Mechanism of Action: A New Classification System Based on a Review of the Literature.

Daniel H Chang, George O Waring, Milton Hom, Melissa Barnett

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Clinical ophthalmology (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06567834 (Clinical Evaluation of Violet Light Filtration and High-resolution Lathing on a Diffractive Extended Depth of Focus Intraocular Lens), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06567834 nacompletednot on this mapstarted 2022, after this paper: background citation

Clinical Evaluation of Violet Light Filtration and High-resolution Lathing on a Diffractive Extended Depth of Focus Intraocular Lens (IOL)

TypeinterventionalSponsorEmpire Eye and Laser CenterRan2022 to 2023Enrolled60ConditionsCataract, PresbyopiaArmsTecnis Symfony Optiblue/Tecnis Symfony Optiblue Toric (Models ZXR00V/ZXW150), Tecnis Symfony/Tecnis Symfony Toric (Models ZXR00/ZXT150)
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Surgical interventions for presbyopia.The Cochrane database of systematic reviews · 2025
    Pooled it
  2. Article
  3. Presbyopia: Current Perspectives and Prospects for Patients.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Review
  4. Article
  5. Article
  6. New technology using crystalline lens autofluorescence for presbyopia and cataract grading.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  7. Article
  8. Pharmacological Treatment in Presbyopia.Journal of clinical medicine · 2022
    Review
  9. Classification of Presbyopia by Severity.Ophthalmology and therapy · 2022
    Article
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 2 countries.

Daniel H ChangEmpire Eye and Laser Center, Bakersfield, CA, USA.
George O WaringWaring Vision Institute, Mt. Pleasant, SC, USA.
Milton HomCanyon City Eyecare, Azusa, CA, USA.
Melissa BarnettUniversity of California, Davis Eye Center, Sacramento, CA, USA.ORCID 0000-0001-7864-2490
CODET Vision Institute · MXEmpire Eye Physicians · USEye Care Associates · USUniversity of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Presbyopia, a loss of accommodative ability associated with aging, is a significant cause of vision impairment globally. At the clinical level, it is a frustrating and difficult issue that negatively impacts patients' quality of life. Less appreciated is the fact that loss of accommodative ability and its current treatments methods may present safety concerns, for example, increasing the risk of falls. Therefore, a more complete understanding of treatment options with respect to how they relate to the natural ability of the eye is needed to improve decision making and to aid clinicians in individualizing treatment options. This article reviews the options for expanding functional through focus-a term coined to describe the ability of the eye to see at all distances with minimal latency-by how they vary the refractive power over time, across the visual field, between eyes, or across a range of distances.

Indexed as

accommodationfunctional through focuspresbyopia

Identifiers

PMID34522079
PMCPMC8432361
OpenAlexW3196725712

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.